How To Fix KT154 - Hierearchy & already contains single values

KT154 - Overview

• Message type: E = Error

• Message class: KT - RK Message Table Maintenance

• Message number: 154

• Message text: Hierearchy & already contains single values

What causes this issue?

You entered an invalid hierarchy:
INCLUDE RKS_0001 OBJECT DOKU ID TX LANGUAGE EN

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose a valid hierarchy.

Error message extract from SAP system. Copyright SAP SE.

KT154 - Details

• The SAP error message KT154, which states "Hierarchy & already contains single values," typically occurs in the context of SAP Controlling (CO) when you are trying to assign or manipulate a hierarchy that already has single values assigned to it. This can happen in various scenarios, such as when working with cost centers, profit centers, or other hierarchical structures in SAP.
  
  Cause:
  The error is triggered when you attempt to add a new node or value to a hierarchy that already contains individual values. SAP does not allow the addition of a new hierarchy node if the existing hierarchy already has single values assigned to it. This is to maintain the integrity of the hierarchy structure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Hierarchy Structure: Review the existing hierarchy to see if it already contains single values. You can do this by navigating to the relevant hierarchy in the